Primary air adjusters on atmospheric type gas burners are usually ___.
a. butterfly shutters
b. sliding sleeves
c. spoiler screws
d. all of the above
Answers
Primary air adjusters on atmospheric type gas burners are usually butterfly shutters.
Are butterfly shutters commonly used as primary air adjusters on atmospheric gas burners?Primary air adjusters play a crucial role in regulating the combustion process in atmospheric type gas burners. These burners rely on the natural flow of air to mix with the gas fuel and create a controlled flame. The primary air adjusters are responsible for controlling the amount of air entering the burner, thus influencing the combustion efficiency and flame characteristics.
Among the options provided, butterfly shutters are commonly used as primary air adjusters in atmospheric type gas burners. Butterfly shutters are adjustable plates or vanes that can be rotated to modulate the air flow. By adjusting the angle of the butterfly shutters, the operator can increase or decrease the amount of primary air entering the burner, thereby affecting the combustion process.
Butterfly shutters are preferred due to their simplicity, reliability, and ease of adjustment. They are designed to provide precise control over the air-to-fuel ratio, ensuring optimal combustion and minimizing emissions. These shutters are typically located at the air intake of the burner and can be manually operated or controlled automatically by a combustion control system.
In summary, butterfly shutters are the primary air adjusters commonly found on atmospheric type gas burners. They offer an effective means of regulating the air flow and achieving efficient and controlled combustion.
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Related Questions
Which one of the following is not an economic want?
Answers
The available options are:
a. Want for a television set
b. Want for medical attention
c. Want for friendship
d. Want for new clothing
Answer:
Want for friendship
Explanation:
Given that economic want is what humans desire to have or possess such that they pay money to acquire them.
Hence, from the available options "want for friendship " is not economic want because it can't be bought with money, while other options can be bought with money or monetary transaction.
Two long pipes convey water between two reservoirs whose water surfaces are at different elevations. One pipe has a diameter twice that of the other; both pipes have the same length and the same value of f. If minor losses are neglected, what is the ratio of the flow rates through the two pipes?
Answers
Answer:
1 : 5.66 ≈ 1 : 6
Explanation:
Determine the ratio of the flow rates through the two pipes
The flow from the bigger pipe is 5.66 times greater than that from the smaller pipe hence the ratio of the flow rates is : 1 : 5.66
attached below is the detailed/remaining part of the solution
Implement the following Matlab code:
x=zeros(10,128);
t1=[0:1/128:1-1/128];
z=cos(2*pi*2*t1);
x(1,:)=z;
x=reshape(x,1,1280);
figure(1);
plot(x)
Examine Figure 1 – what does it “look like”? Zoom in. Take the FFT of x and explain what you see.
Manipulate the FFT and perform the IFFT to create a signal which is a continuous (i.e. no interpolating zeroes) sinusoid in the “time” domain. Explain the amplitude of the sinusoid.
Answers
The amplitude of the sinusoid is 28384 *x soít cos.
What is amplitude?Amplitude is defined as the greatest deviation from equilibrium of a point on a vibrating body or wave in terms of displacement or distance traveled. In most cases, amplitude is calculated by looking at a wave graph and determining the height of the wave from rest. The strength or intensity of the wave is gauged by its amplitude.
Sinusoid is defined as a signal with sine wave characteristics. In the liver, spleen, and bone marrow, sinusoids and irregular tubules transport blood in place of venules and capillaries. The sine or cosine functions from trigonometry form the foundation of sinusoidal signals, which are periodic functions.
Thus the amplitude of the sinusoid is 28384 *x soít cos.
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Application: Assume a small
spacecraft is in open space.
One panel is a dedicated
radiator (dimensions in
image) and is painted with
S13 GLO white paint
(emissivity = .89). If the
radiator is at 30C and has a
full view factor to space, how
much heat can it reject from
the system? (How much is
this radiator radiating to
space?). Use 3K for space
temperature. Round answer
up to one decimal place. No
need to include units.
*.../2
1 m
Radiator
.3 m
Answers
The amount of radiation that the system is radiating into space is 1.164 x 10¹⁷. See the explanation below.
What is radiation?Rockets or space crafts emit heat as they navigate into space. This heat or emissions is what is referred to as radiation.
What is the calculation supporting the answer above?Recall that we are given the following:
Thus,
Converting the temperature of the Radiator, we have:
30°C = 273 + 30
= 303K
Area of the Panel of the radiator = 0.3 x 0.1
= 0.03
The formula for the heat emitted by the system is given as:
Q = ∈δA (T₁⁴ - T₁⁴)
Where:
δ = Stefan - Bolta Mann constant
→ δ = 5.67 X 10⁻ⁿ
→ The amount of heat is thus given as:
Q = 0.89 x 5.17 x 10⁸ [ (303)⁴ - (3)⁴] x 0.03
Therefore,
Q = 1.1635158780036 × 10¹⁷
Q ≈ 1.164 x 10¹⁷
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The arrays array1 and array2 each hold 25 integer elements. Write code that copies the values in array1 to array2.
Answers
#include <iostream>
using namespace std;
int main()
{
const int size = 25;
int array1[size];
int array2[size];
for (int x = 0; x < size; x++)
{
cout << x + 1 << " Enter a number: ";
cin >> array1[x];
}
for (int x = 0; x < size; x++)
{
array2[x] = array1[x];
cout << x + 1 << " Array 2 is: " << array2[x] << endl;
}
cout << array1 << endl;
return 0;
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Explain any five applications of computer modeling in beams.
Answers
Answer:
Explain any five applications of computer modeling in beams.
Explanation:
“We’re late for homeroom,” said Bonnie, surprised to hear herself say “we.” “EARL is a tool, Bonnie’s mother kept reminding her, not a friend or a puppy. ‘Don’t anthropomorphize it, honey,’ Bonnie’s mom said one night after she found Bonnie dancing around her bedroom with the metal contraption. ‘It’s a walking blender. Never forget that.”
QUESTION: What does, "Anthropomorphize" means in the sentences above?
(A) It means to program a robot so that it acts in a robotic or unnatural way?
(B) Or it means to give human characteristics to an object or animal?
(C) To make a human act more like an animal and less of a human?
(D) Or to make a human act more like an animal and less of a human?
Answer correctly
Will give Brainliest, a THX, friend request, and will rate ur answer
Answers
Answer:
Hi there
Your answer is:
B.
Explanation:
The "metal contraption", as the text goes on to say, is treated like a friend to Bonnie. Her mom comments on this by contrasting the metal contraption to a puppy.
Hope this helps
Describe the extent of their own responsibility. When to act on their own innitiative to find , clarify and evaluate information , and to whom they should report if they have problems they cannot resolve in the work place
Answers
Answer:
whatsthe question choices
The part of the circuit that converts electrical energy into other forms
Answers
Answer:
Alternator
Explanation:
A device which converts mechanical energy into electrical energy.
I hope it helps.
A customer has arrived at your shop asking for a rotate and balance. The customer's vehicle is a 2008 Corvette with staggered tires (the rear tires are larger/wider than the front) and directional tires. What should you tell the customer before performing any work on the vehicle? Write your response exactly the way you would say it to your customer.
Answers
Before we proceed with the work, I want to inform you about a couple of important details regarding your vehicle's tires.This configuration is designed to enhance the performance and handling of your vehicle.
Firstly, your Corvette has staggered tires, which means that the rear tires are larger and wider than the front tires. This configuration is designed to enhance the performance and handling of your vehicle. It's important to maintain the correct positioning of these tires during the rotate and balance process to ensure optimal performance.Secondly, your Corvette is equipped with directional tires. Directional tires have a specific tread pattern that is designed to rotate in a specific direction for optimal traction and performance. It's crucial that we maintain the proper rotation direction of these tires during the service.Considering these factors, we will ensure that the rear tires remain in their original position on the rear axle and the front tires on the front axle during the rotate and balance process. This will maintain the intended tire size and ensure proper performance and handling.If you have any further questions or concerns, please feel free to let me know. We want to make sure we provide the best service for your Corvette and keep it running smoothly. Thank you for choosing our shop, and we'll take good care of your vehicle."
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This new concrete allows water to flow through it quickly because it has many holes in it. What is its porosity and permeability
Answers
The permeability of different concrete designs varies. Permeable concrete is a type of concrete that is porous and allows water to pass through it. We recently used this on a project where traffic was driving over an area with drainage issues.
What exactly is porosity, and how does it relate to concrete permeability?
The volume of voids in concrete is measured by porosity. The rate of moisture flow through concrete under a pressure gradient is defined as permeability.
Moisture must be able to move through voids that are interconnected and of a certain size. Moisture flow is slowed by discontinuous pores and pores with narrow entrances. Permeability is low in a mature, well-cured, well-proportioned paste (low w/cm), even if porosity is high. Permeability is increased in porous concrete.
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Calculate the length of a half wave dipole antenna to be used to receive a 10MHz radio signal. Assume that the velocity of the electromagnetic waves on the antenna is 300000000 m/s
Answers
Using the frequency of the radio signal given, the length of the half-wave dipole antenna is 30m
What is the length of the half wave dipole antenna?The formula to calculate the length of a half-wave dipole antenna is:
Length (L) = (c / f) / 2
where:
L is the length of the antennac is the velocity of electromagnetic waves in the medium (in this case, air), which is approximately 300,000,000 m/sf is the frequency of the radio signal in Hertz (Hz)We are given that the frequency of the radio signal is 10 MHz (10,000,000 Hz). Substituting these values into the formula, we get:
L = 3 * 10⁸ / 10 * 10 * 10⁶
L = 30m
Therefore, the length of a half-wave dipole antenna to be used to receive a 10 MHz radio signal is 30 meters.
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how to change a fuel fiter
Answers
5 Systems Modeling
es / SPE(2201 / General / Business System Modelling CAT
2. Business Process Modelling is important to a business due to the following advantages except:
(2 marks)
O a. None of the above
h
O b. Enhances Customization of Business Processes
O c Enhances Competitive advantage
O d. Enhances Process Communication
age
Next pag
Answers
Answer: None of the above
Explanation:
Business process modeling refers to the graphical representation of the business processes of a company, which is vital in the identification of potential improvements.
Business pticess modelling can be done through graphing methods, like data-flow diagram, flowchart etc. It is vital as business managers can effectively and quickly communicate their ideas.
It also enhances the customization of business processes, enhances the competitive advantage and enhances the process communication as well.
Therefore, the answer to the question will be "None of the above".
Is reinforcement needed in a retaining wall
Answers
A pile driver of mass 300 kg is used to drive a pile of mass 500 kg vertically into the ground. The pile driver falls freely through a distance of 54.0 m, rebounding with a velocity relative to the pile and equal to the relative velocity immediately before impact. Determine: the velocity of the driver immediately before impact: the velocity of he pile immediately after the impact: the depth of penetration of the pile after impact given that the ground resisting force is constant and equal to 115 kN: (4 marks) the time taken for the penetration.
Answers
Which is an appropriate type of face and eye protection for resistance welding?
Answers
Answer:
While resistance welding you should wear clear grinding glasses, unbreakable plastic face shields or clear unbreakable plastic goggles. When resistance welding a #10, or more, shade lens should be worn. All hand and portable tools should be inspected for loose parts, cleanliness, or worn power cords.
Cho biết tác dụng chung của các hệ giằng khung ngang nhà công nghiệp nhẹ 1 tầng 1 nhịp.
Answers
Explain how hybrid cars address each of the following problems. Most conventional cars don't get great gas mileage. Electric car batteries need to be recharged constantly. Conventional cars burn gas even when stopped at a red light
Answers
Hybrid cars address each of the following problems in the following ways:Gas Mileage: Most conventional cars don't get great gas mileage due to their reliance on internal combustion engines.
Hybrid cars combine an internal combustion engine with an electric motor and battery system. The electric motor assists the engine during acceleration and other high-power demands, reducing the load on the engine and improving fuel efficiency. This hybrid system allows for better gas mileage compared to conventional cars.Battery Recharge: Electric cars rely solely on battery power, requiring frequent recharging. Hybrid cars, on the other hand, utilize a self-charging system called regenerative braking. When the car decelerates or brakes, the electric motor acts as a generator, converting kinetic energy into electrical energy, which is then used to charge the battery. This regenerative braking system helps to constantly recharge the hybrid car's battery, reducing the need for external recharging.
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If you want to revise a sketch or a feature when using a 3D CAD program, how do you make a correction without using the undo function
Answers
Answer:
See explanation
Explanation:
Truthfully, this answer can vary depending on the CAD program you are choosing to use. Generally, you go to your model tree (this has been on the left hand side of the screen in all of the CAD software I have used) and click the sketch or feature to edit. In some programs this is a left click and in others this is a right click. When the feature is correctly selected a menu should appear with the option to edit feature/sketch/definition/etc. Select this option and you should be able to edit what you wanted to.
The solar system is 25,000 light years from the
center of our Milky Way galaxy. One light year is
the distance light travels in one year at a
speed of
3.0x 10°m/s
have determined that
Astronomers
the solar system
is orbiting the center of the galaxy
at a speed of 230 km/s.
Answers
The time period of the solar system's orbit is 2.05x10^8year
Since most architects have at least a bachelor's degree, they do not require on-the-job training.
O True
O False
Answers
Answer:
The answer is false, I hope this helps. :3
Answer:
False
Explanation:
I took the quiz and it was correct
hot air is to be cooled as it is forced to flow through the tubes exposed to atmospheric air. identify the correct statements in this context.
a. Heat transfer coefficient inside the tube will be higher b. Heat transfer coefficient inside the tube will be lower.
c. Fins should be attached to the outside of the tube. d. Fins should be attached to the inside of the tube.
Answers
Answer:
Explanation:
In this context, we are dealing with the cooling of hot air as it flows through tubes exposed to atmospheric air. Based on this, we can make the following statements:
a. Heat transfer coefficient inside the tube will be higher - This statement is false. As the hot air flows through the tube and comes into contact with the cooler atmospheric air outside the tube, heat transfer occurs between the two fluids. In this process, the temperature difference between the two fluids drives the heat transfer. Therefore, the heat transfer coefficient inside the tube will be lower because the hot air will have a higher temperature than the atmospheric air, and the temperature difference will be smaller.
b. Heat transfer coefficient inside the tube will be lower - This statement is true, as explained in the previous statement.
c. Fins should be attached to the outside of the tube - This statement is true. Fins are used to increase the surface area of the tube, which in turn increases the rate of heat transfer between the hot air inside the tube and the atmospheric air outside. Attaching fins to the outside of the tube will increase the surface area exposed to the atmospheric air, facilitating faster cooling of the hot air.
d. Fins should be attached to the inside of the tube - This statement is false. Attaching fins to the inside of the tube will actually reduce the effective cross-sectional area of the tube, restricting the flow of air and hindering the heat transfer process. Therefore, fins should be attached to the outside of the tube to maximize the surface area and facilitate efficient heat transfer.
5.33 After having been in position 1 for a long time, the switch in the circuit of Fig. P5.33 was moved to position 2 at t = 0. Given that Vo = 12 V, R = 30 k-2, R2 = 120 k2, R3 = 60 k2, and C = 100 MF, determine: (a) ic(0) and vc(0) (b) ico) and vc0) (c) cico) and ucco) (d) uc(1) for 2 0 (e) ic(t) fort > 0 Ri w 2 O R33 Uc R2 Figure P5.33: Circuit for Problems 5.33 and 5.34. 5.34 Repeat Problem 5.33, but with the switch having been in position 2 for a long time, and then moved to position 1 at 1=0.
Answers
In Problem 5.33, the switch in the circuit was moved to position 2 at t = 0 after having been in position 1 for a long time.
This means that the circuit was in a steady state before the switch was moved. Given the values of Vo, R, R2, R3, and C, we can determine various quantities of interest.
(a) At t = 0, the capacitor C acts as an open circuit, and the circuit reduces to a simple voltage divider consisting of R and R2. Therefore, the voltage across R2 is Vo*(R2/(R+R2)) = 9.6 V, and the voltage across R is Vo*(R/(R+R2)) = 2.4 V. Since there is no current flowing through the capacitor, ic(0) = 0 A, and vc(0) = 0 V.
(b) After the switch is moved to position 2, the circuit becomes a simple RC circuit with R3 and C in series. The initial condition for the capacitor voltage is vc(0) = 0 V. Therefore, the initial condition for the capacitor current is ico) = C*dvc(0)/dt = 0 A. The initial condition for the voltage across R3 is vc0) = Vo*(R2/(R+R2)) = 9.6 V.
(c) The time constant of the circuit is given by tau = R3*C = 6 s. The capacitor current can be expressed as ico(t) = ico)*exp(-t/tau), and the capacitor voltage can be expressed as vc(t) = vc0)*(1-exp(-t/tau)). Therefore, cico) = 0 A, and ucco) = vc0)*(1-exp(0)) = 9.6 V.
(d) After the switch is moved to position 1, the circuit becomes a simple voltage divider consisting of R and R3 in series. The initial condition for the capacitor voltage is vc(0) = 9.6 V. Therefore, the initial condition for the voltage across R is uc(1) = Vo*(R/(R+R3)) = 4.8 V.
(e) The capacitor current can be expressed as ic(t) = ico)*exp(-t/tau), where ico)* = ico(t=0) = 0 A. Therefore, ic(t) = 0 A for t > 0.
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For a manufacturing process that produces copper tubing, a(n) would track the variability of the tubing's diameter. A. R-chart B. x-bar chart C. p-chart D.m-chart E. v-chart
Answers
A. R-chart An R-chart, also known as a range chart, is used to track the variability or dispersion of a manufacturing process.
It is commonly used in statistical process control (SPC) to monitor the consistency of a process over time.
In the case of copper tubing production, an R-chart would be suitable for tracking the variability of the tubing's diameter. The chart displays the range (the difference between the largest and smallest values) of a set of samples taken from the manufacturing process. By analyzing the range values, one can assess whether the process is producing tubing with consistent diameter or if there is excessive variability.
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a caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. _______
Answers
A caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. A caisson is a watertight structure or chamber, usually made of wood, metal, or concrete, that is sunk to the bed of a river, lake, or ocean to provide a foundation or support for a bridge, building, or other structure.
A caisson is constructed onshore and then floated to the location where it is to be sunk into the water. Once in place, water is pumped out of the caisson, and construction workers enter the dry chamber to begin work on the foundation or support structure. The use of caissons has been an important development in the construction of bridges and other structures in areas with deep water or unstable soils.
A foundation called a caisson is used in construction on soft or deep water. It involves filling a series of large, watertight cylinders with concrete and sinking them into the ground. The base serves as a solid foundation for any subsequent structures. The construction of large structures like bridges, docks, and caissons is common.
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Please give a detail explanation, thank you
1) When solving the impact problems, we should always assume that during an impact between two bodies, there is no permanent deformation in the bodies.
True or false
2) If a semi-truck collides head-on with a mini car, which one will exert more force?
Semi-truck on the mini car
Mini car on the semi-truck
There is no force exerted
Both vehicles will exert equal force
Answers
The given statement "When solving the impact problems, we should always assume that during an impact between two bodies, there is no permanent deformation in the bodies" is False and there is usually some amount of permanent deformation during an impact when semi-truck collides head-on with a mini car.
The statement is False because In reality, there is usually some amount of permanent deformation that occurs during an impact, especially if the impact is severe. However, in many cases, the amount of deformation may be negligible or can be ignored for simplicity in calculations.Therefore the statement is False.
If a semi-truck collides head-on with a mini car then According to Newton's Third Law of Motion, every action has an equal and opposite reaction. Therefore, both the semi-truck and the mini car will exert equal force on each other during a head-on collision. The force experienced by each vehicle will depend on factors such as their mass, speed, and the duration of the impact. However, it is likely that the semi-truck, being much larger and heavier than the mini car, will experience less of a change in velocity than the mini car and therefore will exert more force on the smaller vehicle.
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Stone has been used as a building material since ancient times because of its compressive strength, which is the __________.
Answers
Complete Question:
Stone has been used as a building material since ancient times because of its compressive strength, which is the?
Group of answer choices
A. ability to support pressure without breaking.
B. ability to press down and become solidly fixed in the ground.
C. relative weight of a block of stone to its size.
D. force a block exerts on the blocks around it.
Answer:
A. ability to support pressure without breaking.
Explanation:
Stone has been used as a building material since ancient times because of its compressive strength, which is the ability to support pressure without breaking.
Compressive strength can be defined as the ability of a structural element or particular material to withstand an applied, which is aimed at reducing the size of the structural element.
Simply stated, it is the ability of a structural element or material to withstand an applied load without deflections, fracture or having any crack.
In this context, a stone possesses the ability to resist or withstand compression loads.
Some examples of other materials or structural elements having good compressive strength are steel, bones, concrete etc. The standard unit of measurement of the compressive strength of a material is Mega Pascal (MPa) or pound-force per square inch (psi) in the United States of America.
Select the option below that contains the correct order or sequence of events. A) 1) Add host to subscription, 2) Use host as report source, 3) Scan hostB) 1) Use host as report source, 2) Add host to subscription, 3) Scan hostC) 1) Add host to subscription, 2) Scan host, 3) Use host as report sourceD) 1) Scan host, 2) Add host to subscription, 3) Use host as report source
Answers
The option that has the correct order or sequence of events are;
1) Scan host.
2) Add host to subscription.
3) Use host as report source.
What are host assets?Host assets are known to be a kind of IP addresses in a person's account. This type of assets is one that can be used as a kind of scan, map and also to report targets.
A person can view the hosts in their account by going the Assets panel to the Host Assets. One can add new hosts by the use of the New menu. The person can also only carry out actions like scanning, mapping and reporting on one's hosts.
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unless otherwise posted, the speed limit in business and residential areas is ____ mph.
Answers
unless otherwise posted, the speed limit in business and residential areas is 25 mph.
The max speed at which you are permitted to drive is indicated by a speed limit on the road. I received a $158 fine for going over the speed limit.
While some speed limits are imposed by federal or state legislation, others are decided upon locally and marked on the road. California State Law has certain general principles that include:
In urban areas, 65mph (miles per hour) is the top speed limit.
Any business sector or residential street has a 25 mph speed restriction.
When children are present, the school zone speed restriction is 25 mph.
In alleys, at crossroads, and at train crossings, the speed restriction is 15 mph (where visibility is limited).
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